Fuser Sub Lamp Overheat Error; Rear Thermistor Disconnection Error - Lexmark X940e Service Manual

920.02 Fuser sub lamp overheat error

Step
1 Reset the fuser overheat failure lock out condition.
1. Enter the Diagnostics Menu.
2. Touch Fuser temp fail clear.
3. Touch Fuser temp fail clear.
Perform a POR.
Does the error occur when the power is turned off/on?
2 Reset the fuser overheat failure lock out condition.
Check the fuser unit assembly for a media jam.
Is there a media jam in the fuser unit assembly?
3 Check the fuser unit assembly for proper installation.
Is the fuser unit assembly installed properly?
4 Check the fuser unit assembly for proper connection.
Is the above component properly connected.
5 Perform a print test.
Does the error continue?
6 Perform a POR.
Does the error occur when the power is turned off/on?

920.03 Rear thermistor disconnection error

Step
1 Check the fuser unit assembly for a media jam.
Is there a media jam in the fuser unit assembly?
2 Check the fuser unit assembly for proper installation.
Is the fuser unit assembly installed properly?
3 Check the fuser unit assembly for proper connection.
Is the above component properly connected.
Check
Check
Yes
Go to step 2. Go to step 5.
Remove the Go to step 3.
media.
Go to step 4. Install the fuser
unit assembly
properly.
Go to step 5. Repair the
connection.
Replace the fuser Problem solved.
unit assembly.
Go to "Fuser unit
assembly
removal" on
page 4-15.
Go to step 6.
Replace the AC Problem solved.
drive card bracket
assembly.
Go to "AC drive
card bracket
assembly
removal" on
page 4-97.
Yes
Remove the Go to step 2.
media.
Go to step 3. Install the fuser
unit assembly
properly.
Go to step 4. Repair the
connection.
Diagnostic information
7510-XXX
No
No
2-147